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H. K. HITCHCOCK. GLASS DRAWING APPARATUS. APPLICATION FILED OCT. 8, 1917.

Patented July 15, 1919.

3 SHEETS-SHEET l- INVENTOR WITNESSES H. K. HITCHCOCK.

GLASS DRAWING APPARATUS. APPLICATION FILED OCT-8,1917- Patented July 15, 1919.

3 SHEETS-SHEET 2.

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WITNESSEVIS UNITED s'ra'rns PATENT QFEIGE.

HALBERT K. HITCHCOCK, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO PITTSBURGH PLATE GLASS COMPANY, A CORPORATIGN OF PENNSYLVANIA.

GLASS-DZRAWI'NG APPARATUS.

' Specification of Letters Patent.

Patented July 15, 1919'.

Application filed October 8, 1917. Serial No. 195,436.

T 0 all whom. it may concern:

Be itv known that I. Hannmrr K. Hrrcm COCK, a citizen of the United States,residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Glass-Drawing Apparatus, of which the following is a specification.

'lheinvention relates to apparatus forpipe."and the application of the. operating power i taken care of in a simple and effecfve maniier. and (4) wherein proper provision is made for the. guiding and steadying of the drawing mechanism. Certain embodiments of the invention are-illustrated in the accompanying wherein Figure 1 is a side elevation of the assembled apparatus; Fig. 2 is an enlarged front elevation of the upper part of the apparatus as shown in Fig. 1; Fig. 3 is a partial rear elevation of the lower portion ofthe apparatus of Fig. 1; Fig. 4 is a side elevation of the. construction of Fig. 2; and Figs. 5, (S and 7 are side elevation, front. elevation, and plan views, respectively, of the upper portion of a modified construction.

Referring to the general arrangement as illustrated in Fig. 1, the principal parts of the apparatus may be enumerated as follows: 1 is a bath of molten glass from which the cylinder 2 is drawn; 3 is the bait detachably secured to the weight 4 which constitutes a part of the drawing apparatus; 5 is the tilting take-down frame. pivotally supported upon the hollow axle (i; T are the operating lines for the. bait. and 8 is the air supply tube therefor; 9 is the motor which operates the. bait and tilts the frame 5: 10 is the counterweight secured to the lower end of the take-down frame; and 11 and 11 are stois for limiting the movement of such taitealown frame.

of improved combined drawings,

The counterweight 10 is carried by a pair of chains 12 (Fig. 23) secured attiieir upper ends to the segmental pulley members 13, so that the chains are wound around such pulley members as the take-down frame moves from the position shown in Fig. 1 to horizontal position.

Mounted for rotation upon the axle 6 is the 'drum or reel 14. to which are secured the. lower ends of the cables or lines 7. Such cables or lines extend to the top of the take-down frame and around the pulley wheels 1:). Connecting devices including the adjustable shackles 16 seite to connect these cables 7 with the weight r, to which the bait 3 is releasablfv attached. The releasable connection between the weight L and bait 3 may be of any desired type, but

In order to provide means for stopping the upward movement of the bait the member 17 is provided at the. upper end of the take-down frame through which the cables 7 extend. such member 17 being adapted to be. engaged by the sto )S 18 carried by the connections between the cables 7 and the weight. t. To provide supports for the weight -t and the cylinder during the takedown operation the. members 19, '20 and 21 are. provided upon the frame, the fac% thereof being curved to correspond with the curvature of the parts with which they are designed to engage. The. weight -l to which the bait is attached performs the function of carrying the bait downward preparatory to a drawing operation, steadies the bait during the drawing oieration, and overhauls the lines or ca les 7 and the air tube 8.

.-\ir is supplied to the tube 8 by means of the blower 22 (Fig. 3) which has its outlet. end swiveled to the end of the hollow axle (3. communication being made between such hollow axle and the end of the tube 8 which is wound upon the reel 1-1. The upper end of the tube passes around the pulley or sheave 23 and extends down and communicates with the passage 24 through the weight '1' (Fig. 2). Suitable guide pulleys 25 are provided upon the frame for carrying the air supply tube.

Any desired type of motor 9 may be used for turning the drum or reel H, although an electric motor is preferred, such motor being connected by a train of reducing gearing I, with the pinion 26, such pinion engaging secured to the axle the spur gear 27 to the drum 14, the tilting axle 6 is keyed I frame being free to rotate upon the axle 6 erated to reel up the operating lines 7 and thus raise the bait to the position shown 1n Fig. 1. At this time the stop members 18 (Fig. 4) engage the member 17, thus sto ing the further upward movement of t e ait, and the lower end of the cylinder is cut loose. The further operation of the motor causes the spur gear 27 to continue its movement in a clockwise direction (Fig. 1), butsince the cable is held from move: ment at its upper end, the drum 14 and take-down frame 5 are rotated slowly in a clockwise directioig around the axle 6, such movement causingthe bait and cylinder to move over against the members 20 and 21, after which the frame is carried to a horizontal position. The bait may 'now' be released from the weight 4 and the cylinder' transferred to a support or horse upon which it is cut intosections, leaving the drawing and take-down apparatus free to be again moved back to operative'positio'n. Asan alternative method of operation the cylinder may be out into sections upon the frame 5 without removing it to a support or horse.

The invention is capable of -embodiment, In a number of modifications, one of which is shown in Figs. 5, 6 and 7.: In this form of construction a drawm frame 28 is employed carrying the ban le 29 of the bait 30. his drawing frame is operated by 31 passing over a ipe 33 passingover the pulley 34, the talib-down frame 35 (Fig. 5) and the mechanism foroperating the lines 31 and the tube 33 being substantially the same as that heretofore illustrated and described. The drawing frame 28 is guided until it reaches its uppermost position, as illustrated in.

Fig. 6, by means of a gllld ing a pair of pipes 35 upon '36 of the drawing frame e frame compris run. These guide pipes35 terminate: adjacent the uppermostposition of the frame 28 so that when the frame reaches the position indicated in Fig. 6 it is released from the; guide frame and can be moved laterally and taken down along with the cylinder in the manner heretofore described. The .upper ends of the pipes 35 are turned outward as indicated at 37,- in order to facilitate the engagement of the drawing frame with the guides when 6. Thei'nsures the which the rollersthe frame is returned for another drawing pperation.

The ing rame 28 in its upward movement, thus positively performing the function of the weight in; the construction of Fig. 1, and

maintenance during the drawing-operation of the bait in exact vertical alinement with the point in the bath from which; the drawing starts. Thedrawing frame-also provides additional weight for overhauling the cable and air supply pipe, thus performing the function of the weight the construction of Fig. 1.

What I claim is: 1. In combination in apparatus for drawing glass articles from a bath of molten glass,

a' tilting take-down frame having its lower end pivoted at a point remote from said bath and inclined when in drawing position with its upper end in alinement with said bath, drawing means carried by the frame and including an operating drum mounted at the pivotal support of the frame, and a motor supported independently of the frame adjacent the pivotal support and having driving connections with the drum, a bait secured to the drawing means.

2. In combination in apparatus for drawing glass articles front a bath of molten glass, a tilting take-down frame having its lower end pivoted at a point remote from said bath and inclined when in drawing position with its uppercnd in alinement with Withsaid drawing means, a-bait secured to the drawing means, and means whereby the said bath, drawing means carried by the. frame, a motor supported independently of said frame having driving connections I .bait is steadied during the drawing movemen't.

' 3. In combination in apparatus for drawing glass articles from a bath of molten glass, a take-down frame pivoted at its lower end, drawin means including an operating line carried by the frame, a bait adapted to be-drawn upward by the line, and fixed 'vertical guideways for the bait terminating be low the upper limit of movement of the bait andfrom which the bait is released when it passes the upper end of said guideway.

4. In combination in apparatus for drawing glass articles 'from a bath of molten glass, a take-down frame end-adjacent the bath of glass, drawing means including an operating line carried by the frame, upward by the line, a carriage for thebait, fixed vertical guides for the carriage, and means whereby the carriage is automatically released from. the guides at the-end of the draw.

In combination a bait adapted to be drawn in apparatus for draw-' ing glass articles from a bath of molten pivoted at its lower glass, a tilting take-down frame, a bait, and means for lifting the bait and supplying air thereto carried-by the frame and including.

an operating line, a flexible-air supply pipe and reeling means for said line and pipe mounted upon the aXi's'of movement of the frame. i i

6. In combination in apparatus for drawing glass articles from a bath of molten glass, a tilting take down frame, a bait, a motor fixed adjacent the frame, a reel rotated by the motor and mounted upon the axis ofmovement of the frame, an operating line for the bait extending around the reel, andmeans for stopping the movement of the bait, the parts being arranged so that the application of the motive power to the reel after the upward movement of the bait is stopped causes the tilting of the frame to take down the bait and cylinder carried thereby.

7. In combination in apparatus for drawing glass articlesfrom a bath of molt/en glass, a tilting take-down frame, a bait, a motor fixed adjacent the frame, a reel rotated by the motor and mounted upon the axis of movement of the frame, an operating line for the bait extending around the reel, and an air supply pipe also extending around the reel and having communication with the bait.

8. In combination in apparatus, for drawing glass articles from a bath of molten glass, a tilting take-down frame pivoted at I its lower end, a rotary member mounted at the pivotal support o-f'the frame, a bait, an operating line'for the bait engaging the rotary member, a motor adjacent the pivotal support of the frame, and means concentric with such pivotal support for transmitting power from the motor to the rotary member.

9. In combination in apparatus for drawing glass articles from a bath of molten glass, a tilting take-down pivoted at its lower end, a bait, a reel concentric with the pivotal support of the frame, an air supply pipe carried by the reel and connected to the bait, air supply means mounted adjacent the frame but separate therefrom, and a connection therefrom extending through the pivotal support of the frame and to the pipe carried by the reel.

HALBERT K. HITCHCOOK. 

